Shareholder Fees (Fees paid directly from your investment)Shareholder Fees (Fees paid directly from your investment)Shareholder Fees (Fees paid directly from your investment)Shareholder Fees (Fees paid directly from your investment)Shareholder Fees (Fees paid directly from your investment)Shareholder Fees (Fees paid directly from your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31Annual Total ReturnsFees and ExpensesInvestment ObjectivePrimary RisksRisk/ReturnPrimary Investment Strategies2013-05-31<p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>This example does not include the brokerage commissions that you may pay to buy and sell ETF Shares of the Fund.
</p><p>Example</p><p>The following example is intended to help you compare the cost of investing in Total International Bond ETF with the cost of investing in other funds. It illustrates the hypothetical expenses that you would incur over various periods if you invest $10,000 in Total International Bond ETF. This example assumes that Total International Bond ETF provides a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold ETF Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>Because ETF Shares are traded on an exchange, they are subject to additional risks:</p><p>The Fund's ETF Shares are listed for trading on Nasdaq and can be bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF Share typically will approximate its net asset value (NAV), there may be times when the market price and the NAV differ significantly. Thus, you may pay more or less than NAV when you buy ETF Shares on the secondary market, and you may receive more or less than NAV when you sell those shares.</p><p>Although the Fund's ETF Shares are listed for trading on Nasdaq, it is possible that an active trading market may not develop or be maintained.</p><p>Trading of the Fund's ETF Shares on Nasdaq may be halted by the activation of individual or marketwide 'circuit breakers' (which halt trading for a specified period of time when the price of a particular security or overall market prices decline by a specified percentage). Trading of the Fund's ETF Shares may also be halted if (1) the shares are delisted from Nasdaq without first being listed on another exchange or (2) exchange officials deem such action is appropriate in the interest of a fair and orderly market or to protect investors.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on DETERMINE IN BL, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>Example</p><p>The following example is intended to help you compare the cost of investing in the Fund's Institutional Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invest $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold Institutional Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>Example</p><p>The following example is intended to help you compare the cost of investing in the Fund's Investor Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invest $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold Investor Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>Example</p><p>The following example is intended to help you compare the cost of investing in the Fund's Admiral Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invest $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold Admiral Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>Examples</p><p>The following examples are intended to help you compare the cost of investing in the Fund's Investor Shares or Admiral Shares with the cost of investing in other mutual funds. They illustrate the hypothetical expenses that you would incur over various periods if you invest $10,000 in the Fund's shares. These examples assume that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold Investor Shares or Admiral Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>Example</p><p>The following example is intended to help you compare the cost of investing in the Fund's Transition Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invest $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p><p>The following table describes the fees and expenses you may pay if you buy and hold Transition Shares of the Fund.</p><p>The Fund seeks to track the performance of a benchmark index that measures the investment return of non-U.S. dollar-denominated investment-grade bonds.</p><p>Portfolio Turnover</p><p>The Fund has no operating history and therefore has no portfolio turnover information.
</p><p>An investment in the Fund could lose money over short or even long periods. </p><p>An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall bond market. The Fund is subject to the following risks, which could affect the Fund's performance:</p><p>Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the Fund because it invests in a diverse mix of short-, intermediate-, and long-term bonds.</p><p>Income risk, which is the chance that the Fund's income will decline because of falling interest rates. Income risk is generally moderate for intermediate-term bond funds, so investors should expect the Fund's monthly income to fluctuate accordingly.</p><p>Credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner, or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the Fund because it purchases only bonds that are of investment-grade quality.</p><p>Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. The Fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. For mortgage-backed securities, this risk is known as prepayment risk. Call/prepayment risk should be low for the Fund because it invests only a small portion of its assets in callable bonds and mortgage-backed securities.</p><p>Country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign companies, governments, or government agencies. Because the Fund may invest a large portion of its assets in bonds of issuers located in a particular country or region, the Fund's performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk for the Fund is high.</p><p>Nondiversification risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of bonds issued by just a few or even a single issuer. The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. Nondiversification risk for the Fund is high.</p><p>Currency hedging risk, which is the risk that the currency hedging transactions entered into by the Fund may not perfectly offset the Fund's foreign currency exposures. The Fund seeks to mimic the performance of foreign bonds without regard to currency exchange rate fluctuations. To accomplish this goal, the Fund attempts to offset, or hedge, its foreign currency exposures by entering into currency hedging transactions. However, it generally is not possible to perfectly hedge the Fund's foreign currency exposures. The Fund will decline in value if it underhedges a currency that has weakened, or overhedges a currency that has strengthened, relative to the U.S. dollar. In addition, the Fund will incur expenses to hedge its foreign currency exposures. Currency hedging risk for the Fund is low.</p><p>Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund's target index. Index sampling risk for the Fund should be low.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund employs an indexing investment approach designed to track the performance of the Barclays Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged). This Index provides a broad-based measure of the global, investment-grade, fixed-rate debt markets. The Index includes government, government agency, corporate, and securitized non-U.S. investment-grade fixed income investments, all issued in currencies other than the U.S. dollar and with maturities of more than one year. The Index is capped, which means that its exposure to any particular bond issuer is limited to a maximum of 20%. Additionally, issuers that individually constitute 5% or more of the Index may not constitute, in the aggregate, more than 48% of the Index. If the Index, as constituted based on market weights, would exceed the 20% or 48% limits, the excess is reallocated to bonds of other issuers represented in the Index. To minimize the currency risk associated with investment in bonds denominated in currencies other than the U.S. dollar, the Fund will attempt to hedge its currency exposures.</p><p>The Fund invests by sampling the Index, meaning that it holds a range of securities that, in the aggregate, approximates the full Index in terms of key risk factors and other characteristics. All of the Fund's investments will be selected through the sampling process, and at least 80% of the Fund's assets will be invested in bonds included in the Index. The Fund maintains a dollar-weighted average maturity consistent with that of the Index, which generally ranges between 5 and 10 years and, as of March 31, 2013, was 8.2 years.</p><p>An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</p><p>The Fund is considered nondiversified, which means that it may invest a significant percentage of its assets in bonds issued by a small number of issuers. </p><p>The Fund began operations on May 1, 2013, so performance information is not yet available.</p><p>800-662-7447</p><p>vanguard.com/performance </p><div style="display:none">~ http://vanguard/role/S000035729ShareholderFeesRetail column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact vanguard_S000035729Member ~ </div> <div style="display:none">~ http://vanguard/role/S000035729ShareholderFeesInstitutional column period 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